Commercial Motor Vehicle Safety Enhancement Act of 2011

[AI summary unavailable — showing source text] Commercial Motor Vehicle Safety Enhancement Act of 2011 - Revises commercial motor vehicle registration requirements to prohibit the Secretary of Transportation (DOT) from registering a person to provide motorcoach services until that person has: (1) submitted a comprehensive management plan that is in place to ensure compliance with DOT motor carrier safety regulations; (2) disclosed any common ownership, common management, common control, or common familial relationships between the carrier and any other motor carrier, freight forwarder, or broker that have occurred in the five-years preceding the filing of an application for registration; and (3) passed the DOT written proficiency examination established under this Act to test a motor carrier's knowledge of federal and state motor carrier safety regulations, standards, and orders. Reduces from 18 months to 12 months after motorcoach operations begin the deadline for mandatory safety reviews of newly registered motorcoach owners or operators. Authorizes the Secretary to register a person to provide motorcoach services after that person undergoes a pre-authorization safety audit. Authorizes the Secretary to withhold, suspend, amen…